baber/WOPTO huggingface dataset:
Patent GB-813099-A (GB)
Title: Neutral polychloro-aliphatic acid esters of polyhydroxy-phenols
IPC: C07C69/63
Filed: 1957-09-18
Abstract: The invention comprises a neutral ester of a polyhydric phenol or a chlorinated polyhydric phenol and an a -a -dichloro or an a :a :b -trichloroaliphatic monocarboxylic acid containing 3-5 carbon atoms and having the general formula <FORM:0813099/IV (b)/1> where n > 1, x = o to (6 - n), x = Cl or H, R = H, CH3 or C2H5.  The esters may be prepared by treating a polyhydric phenol <FORM:0813099/IV (b)/2> with at least n mols. of an aliphatic acid anhydride (RCHXCCL2CO)2O, where the phenol contains n hydroxy groups.  The reaction takes place in the temperature range 90-180 DEG  C. and the pressure may be reduced so that the polychloroaliphatic monocarboxylic acid of reaction can be continuously distilled off.  In examples: (1) catechol is treated with a :a :b -trichloropropionic anhydride to give a bispropionate; a :a -dichloropropionic anhydride is reacted with (2) catechol, (3) resorcinol, (4) tetrachlorohydroquinone, (5) 3:6-dichloro-1:2:4:5 benzene tetrol; (6) pyroyallol is treated with a :a -dichloro-butyric anhydride.  Other products mentioned include those in the preparation of which di- or tri-chlorovaleric anhydride is used as the acid anhydride.ALSO:Herbicidal and pesticidal compositions contain as active constituent a neutral poly-chloroaliphatic acid ester of a polyhydroxy phenol of the general formula <FORM:0813099/VI/1> where n > 1, x is 0 to (6 - n), X is Cl or H, R is H, CH3 or C2H5 may be prepared.  The esters may be dispersed on to inert finely divided solids and used as dusts, suspended in water, possibly with the addition of a wetting agent, and used as sprays or used in oil-in-water emulsions or aqueous dispersions with or without the addition of wetting, dispersing or emulsifying agents.
Patent GB-1434450-A (GB)
Title: Rate measurement circuit
IPC: G04F10/04
Filed: 1974-07-03
Abstract: 1434450 Digital frequency meters GARDNER-DENVER CO 3 July 1974 [3 July 1973] 29519/74 Heading H3H  In a digital frequency meter in which the frequency of events is measured by calculating the reciprocal of the time interval between successive events, a counter 16, reset by each event, counts clock pulses for the time interval between events, a second counter 21 counts reference pulses for a predetermined time interval and is reset to zero each time it reaches the same state as counter 16, and the number of times the counter 21 is reset during the predetermined time interval is counted at 17 for indication by a digital display (not shown). The clock pulses and the predetermined time interval are derived from the same 10 MHz oscillator 15 which generates the reference pulses. The clock frequency is selectable with 0À01% resolution between 1 Hz and 10<SP>5</SP> Hz and the predetermined time interval is also selectable. The input may be derived from a rotating pulley or advancing drill.
Patent GB-320023-A (GB)
Title: Improvements in or relating to communication systems
IPC: H04L5/06
Filed: 1929-09-30
Abstract: 320,023. Marconi's Wireless Telegraph Co., Ltd.) (Assignees of Ranger, R. H.). Sept. 29, 1928, [Convention date]. Harmonic telegraphs.-A transmitter for multiplex communication comprises means for generating a plurality of different tone frequencies, which are impressed on a combining unit and thence on a transmitter, the arrangement being such that the low frequencies are superimposed exactly once per cycle. In one system, a motor 1, Fig. 1, supplied from mains 2, is controlled by a tuning fork 3, and rotates a plurality of insulated commutators A - - D, having a number of segments such that the resulting tone frequencies are harmonics of the tuning fork frequency. The segments of each commutator are earthed through the shaft 6, the brushes being connected to a combining unit 13a and transmitter 13 through modulation systems 15 - - 18, such as used for keying, picture or automatic code transmission or broadcasting; in the latter case all tone frequencies should be supersonic. When the segments 9<1> - - 12<1> are beneath the brushes, all four circuits are simultaneously operative, the number of segments on the various commutators being so chosen that this occurs only once per revolution. In a second form, the commutators are replaced by a plurality of discs 109 - - 112, Fig. 2, each having a number of teeth corresponding to the number of commutator segments of Fig. 1. The teeth pass through magnetic fields 113 - - 116, and serve to connect corresponding modulating systems to the transmitter as in Fig. 1. The receiver 20, Fig. 3, has a plurality of filters Fa - - Fd, each passing only the tone frequency of the corresponding commutator or disc.
Patent GB-862249-A (GB)
Title: Improvements in or relating to iso-benzmorphan derivatives
Filed: 1959-09-01
Abstract: The invention comprises iso-benzomorphan derivatives of the general formula <FORM:0862249/IV (b)/1> and non-toxic acid addition salts thereof in which R represents a hydrogen atom, a methyl, or phenylalkyl radical, the alkylene chain of which contains 1 to 4 carbon atoms and R1 represents a hydrogen atom, or an acyl or an alkyl radical having a maximum of 7 carbon atoms.  The compounds of the invention are prepared by condensing 3,4-lutidine methiodide with p-methoxybenzyl magnesium chloride, hydrogenating the dihydro base, cyclizing the tetrahydro base so formed and separating the mixture of N-methyl isomers into the iso- and normalforms. N-Phenylalkyl compounds are prepared by demethylating the N-methyl compound, after O-acetylation, followed by hydrolysis of the acetate and alkylation either with a reactive ester or with an acyl chloride or anhydride followed by reduction of the resulting amide.  Free hydroxyl compounds may be acylated or etherified. The compounds of the invention may be resolved into their optical isomers with an optically-active acid.
Patent GB-1498688-A (GB)
Title: Treatment of single cell protein
IPC: C12N1/00
Filed: 1975-07-16
Abstract: 1498688 Reducing RNA content of microbial protein IMPERIAL CHEMICAL INDUSTRIES Ltd 6 July 1976 [16 July 1975] 29841/75 Heading C6F A process for the treatment of microbial single cell protein whereby to reduce the nucleic acid content involves subjecting an aqueous medium containing microorganism cells to the steps of (A) treatment with an acid to lower its pH to a value not greater than 5 and (B) heating to a temperature of at least 60C, steps (A) and (B) being performed in either order or at the same time, and subsequently (C) treatment with an alkali to raise the pH of the medium to a value of at least 6 whilst maintaining the temperature of the medium at a value of at least 60C, and thereafter separating the cells from the medium. The preferred conditions are: pH 2-5 in step A, temperature of 60-100C in step B and pH of 6-10 in step C. The aqueous medium may be heated in step B, while maintaining the lower pH of step A, for a period of at least one minute, preferably from 2 to 10 minutes. The aqueous medium preferably contains 0À05-2%(w/v) of a salt e.g. sodium chloride or ammonium phosphate. The pH of the medium may be raised to a value within the range 8 to 11 by treatment with alkali, prior to performing steps (A) and/or (B) above. The cells may be of bacteria (specified) or yeast. The Examples are directed to the treatment of the cells of the following bacterial species: Pseudomonas methylotropha, Pseudomonas diminuta, Pseudomonas aeruginosa, Pseudomonas fluorescens, Pseudomonas alcaligenes, A lcaligenes faecalis and Bacillus cereus.
Patent GB-1030198-A (GB)
Title: Improvements in and relating to camping tents
IPC: E04H15/06
Filed: 1963-07-26
Abstract: 1,030,198. Tents. A. DE ANGELIS. July 23, 1964 [July 26, 1963], No. 29851/63. Heading EIA. A portable, folding tent comprises four extensible legs 9 pivotably mounted on the roof rack 8 of a vehicle, each leg consisting of three sections 9a, 9b, 9c adapted to be folded up for storage, see Fig. 5 (not shown) and rigidly held extended by a locking element 10 and an angle bracket 11. Each leg 9 can be locked in a selected angular position relative to the rack 8 by a pivotal connection for details of which Fig 3 (not shown) should be referred to. Tensioning cables 14, 15 are also provided as shown together with turn-buckles, if so desired.
Patent GB-210526-A (GB)
Title: Improvements in and relating to the manufacture of paper and other fibrous compositions
IPC: D21H17/35
Filed: 1922-11-01
Abstract: 210,526. Schidrowitz, P. Nov. 1, 1922. Addition to 193,451, [Class 70, India-rubber &c.]. Paper treated with special materials; pulp, adding special substances to.-Unwoven fibrous materials are treated with latex vulcanized as in the parent Specification or in Specification 208,235, [Class 70, India-rubber &c.], and vulcanized rubber is deposited on the fibre e.g. by the addition of a coagulant. The invention is specially applicable to the manufacture of paper, the vulcanized latex being added to the pulp, deposition effected, and the pulp worked up, or the formed sheet may be impregnated with the latex and the rubber subsequently deposited. According to an example to pulp containing 2“ per cent dry fibre is added 10 per cent of resin size (calculated on the dry fibre), and a quantity of vulcanized latex sufficient to yield 1 per cent of dry rubber calculated on the dry fibre; the size is precipitated and the rubber coagulated by the addition of alum, and the pulp is made into paper in the usual way. The addition of larger percentages of rubber gives stronger papers.
Patent GB-370865-A (GB)
Title: Improvements in or relating to machines for sorting perforated cards
IPC: G06F7/06
Filed: 1930-10-06
Abstract: 370,865. Statistical apparatus. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Oct. 6, 1930, No. 29886. Convention date, Oct. 7, 1929. Void [Published under Sect. 91 of the Acts]. Addition to 359,073. [Class 106 (i).] Sorting cards.-The Specification as open to inspection under Sect. 91 (3) (a) sets out a machine for sorting perforated cards wherein the cards are conveyed to the boxes by rollers between guides consisting of wires or bands, these guides being attached to control nose pieces which are positioned to give a sorting channel according to the value read. The apparatus described is apparently for dealing in the code cards. When a card is read magnets 8 .. 11 are energized according to the holes with card and rollers 12 on the armatures 13, Fig. 1, engage lugs on control bars 2 .. 5, Fig. 4 ; these bars have notches 21, duplicated at the other end of the bar so that for each setting of the bars only one of a series of loops 14 can fall into a duplicated series of four aligned notches. The loop 14 thus moved, actuates its appropriate one of a series of arms 23, Fig. 1, pivoted at 23a. These arms 23 coact with the control noses 1, Fig. 5, which are attached to the sorting wires 24, Figs. 1 and 5, so that when an arm is actuated, according to the hole value read off the card, the arm raises certain noses 1 and leaves others behind so as to form a mouth into which the card is fed, to proceed to the correct sorting box. Control noses so raised are held up by notches 34, Fig. 5, and are later relowered by cam 30, arm 31 and resetting member 25, Fig. 1. After passing into the wires 24 the cards are fed to the sorting boxes as in the parent Specification.
Patent GB-533493-A (GB)
Title: Improvements in and relating to breast (mammary) pumps
IPC: A61M1/06
Filed: 1939-11-13
Abstract: 533,493. Breast pumps. BROWN, M. Nov. 13, 1939, No. 29922 [Class 81 (ii)] A breast pump by which pressure is applied to the mammary gland at the same time as suction is applied to the nipple comprises a body portion a having a collecting cup b and a flared mouth d in which is arranged a hollow rubber ring f connected by a tube g to a pump cylinder h in which a piston h<SP>1</SP> operates. The vessel a is also connected to the cylinder at a point such that when pressure is being created in the ring f suction is produced in the vessel a. Valves j, k are provided to regulate the pressures produced.
Patent GB-309530-A (GB)
Title: Packing plate or gasket for cylinder heads of internal combustion engines
IPC: F16J15/12
Filed: 1928-10-18
Abstract: 309,530. Huth, C. April 12, 1928, [Convention date]. Addition to 304,715. Drawings to Specification. Joint-making packing.-In the cylinder-head gasket described in the parent Specification comprising an asbestos sheet having the cylinder openings sheathed with sheet nickel or copper, the metal sheathing is pressed level with the surface of the gasket.
Patent GB-1517606-A (GB)
Title: Spray bonding of nickel-aluminum and nickel-titanium alloys
IPC: C23C4/18
Filed: 1976-07-20
Abstract: 1517606 Spray-coating with Ni-Al or Ni-Ti H S RONDEAU 20 July 1976 [24 July 1975]  30181/76 Headings C7A and C7F A metallic substrate is coated with Ni-Al or Ni-Ti by electric-arc spraying a wire of the desired alloy. The alloys preferably contain 80-98 wt per cent Ni, 2-20 wt per cent Al and 40-70 wt per cent Ni, 30-60 wt per cent Ti, and may contain small amounts of hardening and fluxing additives, e.g. C, Mn, S, Si, Ti, Cu, Fe. Preferred substrates are steel and Al, but Mg, stainless steel, Cu, cast iron, and Ti are also referred to. The coatings may be subsequently heated, cooled and aged, an Example referring to heating a coated Al substrate at 950F, quenching, and ageing at 525F, and to heating a coated steel substrate at 1200 F and furnace cooling. A preferred Ni-Al alloy contains a minimum of 93 wt per cent Ni, 4-5À2 wt per cent Al, 0À25-1 wt per cent Ti, and no more than 0À25 wt per cent Cu, 0À5 wt per cent Mn, 0À6 wt per cent Fe, 1À7 wt per cent Si, 0À3 wt per cent C and 0À01 wt per cent S.
Patent GB-391848-A (GB)
Title: Process for the production of chromium aluminium steels
IPC: C22C38/06
Filed: 1931-11-02
Abstract: Steel alloys for articles to be exposed to high temperatures contain 5-16 per cent of aluminium and 1-6 per cent of chromium, the relation between the aluminium and chromium being defined by a diagram.  The carbon content is preferably below 0.1 per cent.  Up p  to 3 per cent of the aluminium may be replaced by one or more of the elements silicon, beryllium, titanium, and vanadium, the minimum aluminium content being 2.5 per cent, and up to 1 per cent of the chromium may be replaced by one or more of the elements tungsten, nickel, molybdenum, manganese and cobalt, the minimum chromium content being 0.5 per cent.  The alloys may be made in a high-frequency induction furnace.  Reference has been directed by the Comptroller to Specifications 217,991, 298,408, 302,640, and 302,644, [all in Class 82 (i), Metals, Extracting &c.].
Patent GB-1147438-A (GB)
Title: Halophenylpyridine derivatives and the use thereof as herbicides
Inventor: LONG FRANK
IPC: C07D213/64
Filed: 1966-07-06
Abstract: 1,147,438. Halophenyl pyridines. MONSANTO CHEMICALS Ltd. 20 June, 1967 [6 July, 1966], No. 30295/66. Heading C2C. [Also in Division A5] The invention comprises pyridines of the formula or a salt or N-oxide thereof, where R is halogen or a cyano, hydroxyl, mercapto or aliphatic -oxy group, m is 1-3, X is a halogen atom and m is 3-5, provided that when R is both chlorine and a cyano group, the halophenyl group is in an α- or #-position in the pyridine ring. The free pyridine bases may be prepared by heating a R m -substituted pyridine sulphonyl halide with an X n -substituted benzene, preferably in the presence of a catalyst. The free bases can also be obtained by decomposition of a diazonium salt of an appropriate aminopyridine or N-nitrosoacylaminopyridine in the presence of an X n -substituted benzene. Compounds in which R is hydroxy, mercapto or cyano may be obtained by replacement reactions of the corresponding chloro- and bromo-compounds. The N-oxides can be obtained by oxidation with a peracid or a peroxide. The free bases may be converted to acid addition salts and quaternary compounds by conventional methods. The halphenyl pyridines possess herbicidal properties (see Division A5)
Patent GB-273958-A (GB)
Title: Improvements in or relating to fluid compressors
IPC: F04B39/06
Filed: 1926-11-30
Abstract: 273,958. Tomlinson, A. V., (Westing- house Air Brake Co.). Nov. 30, 1926. Heat of compression, absorbing.-Cooling is effected by the passage of fluid into and out of the cylinder during the suction stroke. The head of a cylinder liner 19 which acts as a sleeve valve is exposed to an air current from a blower in communication with the inlet 44, the air as shown traversing an annular chamber surrounding the discharge chamber 36 and being delivered near the discharge valve 30 through ducts 39. During the suction stroke of the piston 55, the cylinder is withdrawn by ring friction, from engagement with the closure washer 26 and descends until arrested by a shoulder 42 coming into contact with the washer 45. The air current is, under these conditions, free to sweep over and across the cylinder head as well as supplying air for the suction stroke. The initiation of the compression stroke raises the working cylinder until it. contacts with the washer 26.
Patent GB-408039-A (GB)
Title: Improved bathing cap
IPC: A42B1/12
Filed: 1932-11-11
Abstract: 408,039. Bathing-caps. DOROGI, I., DOROGI, L., and DOROGI ES TARSA GUMMIGYAR R. T., Dr., 50, Budapest-Albertfalva, Budapest. Nov. 11, 1932, No. 30404. [Class 63.] A rubber bathing cap is made reversible by providing the cap at its outer and inner surfaces with a finished execution of different character. One surface of the cap may for example, be a plain or patterned rubber surface, and the other surface may be partly or wholly covered with fibrous material or have fibre powder or thread applied to it to give the appearance of flannel or deer skin. In addition, the two surfaces of the cap may differ in colour or pattern, or the cap may show at both surfaces the character of rubber or fibrous material or deer skin, the two sides differing from each other only in colour or pattern. The edges of the fibre covered side of the cap are left blank on a certain width to give a watertight fitting on the head. The chin strap and the buttons for fastening the strap to the cap may also be provided at both surfaces with a character corresponding to that of the two sides of the cap.
Patent GB-743309-A (GB)
Title: Improvements in or relating to numbers selecting chance devices or appliances
IPC: G07C15/00
Filed: 1953-11-04
Abstract: 743,309. Chance apparatus. CARR, O., and HUGHES. F. W. Sept. 28, 1954 [Nov. 4. 1953], No. 30423/53. Class 132(2) Chance apparatus, e.g. for forecasting results for football pools, comprises an elongated chamber a having. a fixed or removable transparent cover b and the floor of which is formed with a line of numbered recesses c in which loose balls f come to rest after shaking.
Patent GB-504204-A (GB)
Title: Improvements in or relating to engines or compressors
IPC: F04B39/06
Filed: 1937-11-05
Abstract: 504,204. Compressors ; cylinders ; synthetic resin articles. AUTO UNION AKT.-GES. Nov. 5, 1937, No. 30447. Convention date, Nov. 5, 1936. [Class 8 (i)] [Also in Groups IV and XXVII] An engine or compressor has a casing made of synthetic resin, and the casing is secured to the cylinder base by a clamping ring made of laminated or reinforced synthetic resin. The crank-case of the engine shown consists of two identical parts 1, 2 made on or in the same mould. The parts are made from strips saturated with synthetic resin and pressed into steel moulds. Flanges 3 are formed integral with the parts and are screwed together. The parts 1, 2 have a flange 5 which engages a flange 7 on the base of the cylinder 6. The cylinder is secured by a two-part clamping ring 8 made of synthetic resin. Flanges 12, 13 thereon engage flanges on the cylinder and crank-casing respectively. In the construction shown in Fig. 2, reinforcements 17, 18 of resin are inserted between the flanges. In the construction shown in Fig. 4, applied to a water-cooled single-cylinder engine, a cooling- jacket 19, pressed out of resin with a filler, is arranged above the flange 7. A clamping ring 20 of resin, or of resin reinforced with steel inserts, connects the parts and is secured by screws 21. At the exhaust passage 22, the carburetter inlet 23 and sparking-plug socket 24, the cooling-jacket is secured by flanges on separate insert members 25, 26, 27.
Patent GB-269095-A (GB)
Title: Improvements relating to ropeways
IPC: B61B7/02
Filed: 1926-12-01
Abstract: 269,095. Main, G. A., and Main Ropeways, Ltd. Dec. 1, 1926. Overhead travellers and transporters.-In order to move the suspended load in a horizontal or other definite path, the suspension rope 10 is taken in or payed out by a differential feed device as the trolly 1 traverses the ropeway and the standing line 2 sags under the load. As shown in Fig. 1, the rope 10 is wound on a fusee drum 16 on the shaft of the haulage drum 6, and the haulage rope 5 is attached to the rope 10 at 11 and kept taut by a weight 15. The rope 10 is payed out by the drum at a varying rate as the trolly moves from left to right. In a modification. Fig. 2, the load is suspended in a bight 19 of the endless haulage rope 17 which is driven by a fusee drum 18. In another form, Fig. 3, the load is supported in a bight 22, which is either an endless rope wound on a fusee drum 23 driven by a fixed rope 21 as the trolly moves, or is a part of the rope 21.
Patent GB-1357917-A (GB)
Title: Method for forming moire fringe contour lines
IPC: G01B11/24
Filed: 1971-06-29
Abstract: 1357917 Measuring surface flatness using moire fring patterns NIPPON KOGAKU K K 29 June 1971 [2 July 1970] 30457/71 Heading G2J The invention relates to measuring the flatness of a surface in a recess using moire fringes. If light from a laser L, Fig. 1, is brought to a point focus 2 and then passed through a prism B to give rise to two effective point sources 3, 4, which are located at the focus of a collimating lens 5 two collimated light beams are produced which are so angled to one another that they are obliquely incident on and interfere on the surface 6 being investigated. If the interference fringes are photographed at 8 through lens 7 and the photograph superimposed on a similar photograph taken when a flat reference surface 9 is substituted for surface 6, a moire pattern appears, from which the difference in height of various portions of surface 6 can be deduced. However if the surface 10, Fig. 2, lies at the bottom of a recess, some of the oblique rays of the Fig. 1 arrangement would not reach the surface. Accordingly the collimated light beam paths 30, 40 are directed nearly normally towards surface 10 and are deflected on to the surface 10 by a prism 20. As shown the surface is that of a film in a camera and accordingly acts itself to record the fringes. The process is repeated using as a test flat surface a photographic plate 25 in place of the film. The two records are then superimposed and the moire fringe pattern observed through a converging lens (30'), Fig.3, (not shown) and an apertured diaphragm (35).
Patent GB-520412-A (GB)
Title: Improvements relating to means for mounting cathode ray tubes
IPC: H04N5/645
Filed: 1938-10-21
Abstract: 520,412. Cathode-ray tubes. KOLSTERBRANDES, Ltd., and SMYTH, C. N. Oct. 21, 1938, No. 30526. [Class 39 (i)] The mask for the screen of a cathode-ray tube consists of a cap 3 of flexible insulating material such as rubber moulded to fit over the end of the screen and provided with a rectangular or other shaped opening 2. The opening is surrounded by a flat rim 4 with an external groove 7 and flexible lip 8 adapted to engage the edges of the rectangular opening in the front panel of a television receiver cabinet or other supporting framework. An internal groove 5 and flexible lip 6 is provided for a protecting glass plate.